136423433 has 2 divisors, whose sum is σ = 136423434. Its totient is φ = 136423432.

The previous prime is 136423421. The next prime is 136423471. The reversal of 136423433 is 334324631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128981449 + 7441984 = 11357^2 + 2728^2 .

It is an emirp because it is prime and its reverse (334324631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136423433 - 2⁶ = 136423369 is a prime.

It is a super-2 number, since 2×136423433² = 37222706143010978, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_7721354 and since 136423433 and 7721354 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 136423396 and 136423405.

It is not a weakly prime, because it can be changed into another prime (136423333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68211716 + 68211717.

It is an arithmetic number, because the mean of its divisors is an integer number (68211717).

Almost surely, 2^136423433 is an apocalyptic number.

It is an amenable number.

136423433 is a deficient number, since it is larger than the sum of its proper divisors (1).

136423433 is an equidigital number, since it uses as much as digits as its factorization.

136423433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 29.

The square root of 136423433 is about 11680.0442208067. The cubic root of 136423433 is about 514.7894737587.

The spelling of 136423433 in words is "one hundred thirty-six million, four hundred twenty-three thousand, four hundred thirty-three".